Quick Transmigration: The Tool-Woman Supporting Character Quits

Tu Mingming is a quick transmigration executor working under the "Stepping Stone" System. To save her younger sister, she diligently serves as a stepping stone for the Child of the Plane.

To help the Child of the Plane level up, her family is destroyed. To keep the Child of the Plane safe, she dies alongside the villain. When the Child of the Plane wants a harem, she helps gather one...

As long as she can save her sister's life, she has no sense of self at all, living like a mere tool.

But her sister still dies.

That day, Tu Mingming completely turns to darkness.

Heaven has prescribed a fixed path for her, a mere tool, but she insists on defying fate!